Ship Emissions Register

Oil tanker · Marshall Islands flag

ALDER EXPRESS

IMO 9934163 EU ETS4 reporting years

CO₂ reported 2025
2,137 t
Fuel burned
678 t
Distance
9,452 nm
Time at sea
762 h
Emitted at berth
14% of total
Share of year under way
9%

Vessel particulars

IMO number
9934163
Ship type
Oil tanker
Flag state
Marshall Islands
Port of registry
Majuro
Technical efficiency (design)
EEXI (4.18 gCO₂/t·nm)
Verifier
DNV, Germany
Accreditation
VS-16026-01
Compliance document issued
2026-02-26
Compliance document expires
2027-06-30

Flag state is derived from the reported port of registry, not reported directly, and reflects the registry at the time of reporting.

Efficiency against its own type2025

Position 522 of 1,448 qualifying oil tankers by EEOI, at the 36th percentile. The dashed line is the type median, 7.5; this vessel reported 6.5.

0255075100more efficientless efficientThis vessel: 36th percentile, EEOI 6.5

EEOI divides emissions by transport work, which for this vessel and year was 331,299,225 tonn-nmover 9,452 nautical miles.

Reported CO₂ by year

2022: 3,743 t20223,7432023: 4,493 t20232024: 2,829 t20242025: 2,137 t20252,137

Between 2022 and 2025 reported CO₂ fell by 42.9%.

From 2024 to 2025, emissions fell 24.5% while distance sailed fell 12.5%and CO₂ per nautical mile fell 13.7%.

Annual returns2022–2025

Year CO₂ (t) Fuel (t) Distance (nm) At sea (h) At berth (t) kg CO₂/nm EEOI Percentile
2025 2,137 678 9,452 762 301 226.1 6.5 36
2024 2,829 902 10,801 1,011 186 261.9 10.7 77
2023 4,493 1,424 20,145 1,664 481 223.1 9.0 60
2022 3,743 1,196 16,520 1,423 247 226.6 10.5 70

Where the 2025 emissions occurred

At berthAt berth: 301 t301Within EEA portsWithin EEA ports: 307 t307Voyages between EEA portsVoyages between EEA ports: 287 t287Voyages to an EEA portVoyages to an EEA port: 852 t852Voyages from an EEA portVoyages from an EEA port: 691 t691

Methane, nitrous oxide and EU ETS2025

Total CO₂ equivalent
2,170 t
Methane (CH₄)
0.03 t
Nitrous oxide (N₂O)
0.12 t
Under EU ETS
1,365 t, 64% of total

Sources and how to read this

What this page is built on

Reporting years
4
Ranked by efficiency
yes
Vessel particulars
1 of 5
Movement data
not observed
Name history
none recorded
Photograph
none licensed
Sanctions record
none
Inspection record
none in US waters
Caveats that apply to every vessel page

EEOI above 100,000 is withheld. Those values come from returns where reported transport work is near zero, which makes the ratio meaningless rather than extreme. Median across the dataset is around 12.

Emission categories overlap. In the MRV return, emissions at berth are also counted inside the voyage legs, so the categories do not sum to the total. They are shown side by side rather than stacked for that reason.

Distance is derived, intensity is reported. The MRV return publishes CO₂ per nautical mile but not the distance itself, which is null in all 106,564 rows of the source. The distance column is therefore filled from the ranking step, which reconstructs it, and is blank for years where a vessel was not ranked. That is why a row can show an intensity without a distance.

Percentile is within type and year. It is the vessel's position among qualifying ships of the same type that year, where lower is more efficient. A blank means the vessel did not qualify for ranking that year.

Sister ships share a builder, a type and a build year within two years of this vessel. That holds hull and machinery roughly constant and leaves operation as the variable, which is why they are listed before nearest-by-tonnage.

Methane and nitrous oxide start in 2024. They were not reported before that period, so earlier years cannot be compared against them.

Technical efficiency is a design figure fixed at construction. A vessel can hold a good index and still emit heavily by sailing fast, waiting at anchor or carrying little.

Inspection records cover United States waters only. An empty record is not evidence of a clean history elsewhere.

Empty means unreported, never zero. Nothing here is modelled, estimated or interpolated. See the methodology.

Something wrong on this page? See corrections. We do not hold the source registers and cannot amend them, but we will fix anything we have got wrong in reproducing them.

Comparable vesselsnearest by tonnage, same type